12 Pcs. Precision Twist 3/16″ P10CO Cobalt Steel Jobber Drill Bit, Bronze Finish
Offering 12 Pcs. – Precision Twist 3/16″ P10CO Cobalt Steel Jobber Drill Bit, Bronze Finish. New Unused in Original Manufacturer Packaging. See photos for more details on what is included in this listing and its Condition. (ADS1) Precision Twist Drill Co. 3/16″ Jobber Drill Bit OAL 3-1/2″ Flute Length 2-1/2″ Precision Twist Co. P10CO Cobalt Steel Jobber Drill Bit, Bronze Oxide Finish, Round Shank, Spiral Flute, 135 Degree Point Angle, Split Point The Precision Twist P10CO jobber-length drill bit is a 135-degree, spilt-point, heavy-duty, round shank drill bit made of HSS and cobalt with a bronze oxide finish. For best performance, use for drilling into hardened, tempered alloy steel, nodular graphite malleable cast iron, titanium, and alloyed nickel. It is suitable for drilling to a depth up to four times the diameter of the drill. The shank diameter is the same as the drill size. Made of HSS with cobalt which is many times harder/stiffer than HSS, will hold an edge longer, and will deflect less than HSS. They are also more resistant to heat than HSS. These qualities allow it to run at higher speeds and feeds.